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import { Ghostty, Terminal as Term, FitAddon } from "ghostty-web"
import { ComponentProps, createEffect, createSignal, onCleanup, onMount, splitProps } from "solid-js"
import { useSDK } from "@/context/sdk"
import { SerializeAddon } from "@/addons/serialize"
import { LocalPTY } from "@/context/terminal"
import { resolveThemeVariant, useTheme } from "@opencode-ai/ui/theme"
export interface TerminalProps extends ComponentProps<"div"> {
pty: LocalPTY
onSubmit?: () => void
onCleanup?: (pty: LocalPTY) => void
onConnectError?: (error: unknown) => void
}
type TerminalColors = {
background: string
foreground: string
cursor: string
}
const DEFAULT_TERMINAL_COLORS: Record<"light" | "dark", TerminalColors> = {
light: {
background: "#fcfcfc",
foreground: "#211e1e",
cursor: "#211e1e",
},
dark: {
background: "#191515",
foreground: "#d4d4d4",
cursor: "#d4d4d4",
},
}
export const Terminal = (props: TerminalProps) => {
const sdk = useSDK()
const theme = useTheme()
let container!: HTMLDivElement
const [local, others] = splitProps(props, ["pty", "class", "classList", "onConnectError"])
let ws: WebSocket
let term: Term
let ghostty: Ghostty
let serializeAddon: SerializeAddon
let fitAddon: FitAddon
let handleResize: () => void
const getTerminalColors = (): TerminalColors => {
const mode = theme.mode()
const fallback = DEFAULT_TERMINAL_COLORS[mode]
const currentTheme = theme.themes()[theme.themeId()]
if (!currentTheme) return fallback
const variant = mode === "dark" ? currentTheme.dark : currentTheme.light
if (!variant?.seeds) return fallback
const resolved = resolveThemeVariant(variant, mode === "dark")
const text = resolved["text-base"] ?? fallback.foreground
const background = resolved["background-stronger"] ?? fallback.background
return {
background,
foreground: text,
cursor: text,
}
}
const [terminalColors, setTerminalColors] = createSignal<TerminalColors>(getTerminalColors())
createEffect(() => {
const colors = getTerminalColors()
setTerminalColors(colors)
if (!term) return
const setOption = (term as unknown as { setOption?: (key: string, value: TerminalColors) => void }).setOption
if (!setOption) return
setOption("theme", colors)
})
const focusTerminal = () => term?.focus()
const copySelection = () => {
if (!term || !term.hasSelection()) return false
const selection = term.getSelection()
if (!selection) return false
const clipboard = navigator.clipboard
if (clipboard?.writeText) {
clipboard.writeText(selection).catch(() => {})
return true
}
if (!document.body) return false
const textarea = document.createElement("textarea")
textarea.value = selection
textarea.setAttribute("readonly", "")
textarea.style.position = "fixed"
textarea.style.opacity = "0"
document.body.appendChild(textarea)
textarea.select()
const copied = document.execCommand("copy")
document.body.removeChild(textarea)
return copied
}
const handlePointerDown = () => {
const activeElement = document.activeElement
if (activeElement instanceof HTMLElement && activeElement !== container) {
activeElement.blur()
}
focusTerminal()
}
onMount(async () => {
ghostty = await Ghostty.load()
ws = new WebSocket(sdk.url + `/pty/${local.pty.id}/connect?directory=${encodeURIComponent(sdk.directory)}`)
term = new Term({
cursorBlink: true,
fontSize: 14,
fontFamily: "IBM Plex Mono, monospace",
allowTransparency: true,
theme: terminalColors(),
scrollback: 10_000,
ghostty,
})
term.attachCustomKeyEventHandler((event) => {
const key = event.key.toLowerCase()
if (key === "c") {
const macCopy = event.metaKey && !event.ctrlKey && !event.altKey
const linuxCopy = event.ctrlKey && event.shiftKey && !event.metaKey
if ((macCopy || linuxCopy) && copySelection()) {
event.preventDefault()
return true
}
}
// allow for ctrl-` to toggle terminal in parent
if (event.ctrlKey && key === "`") {
event.preventDefault()
return true
}
return false
})
fitAddon = new FitAddon()
serializeAddon = new SerializeAddon()
term.loadAddon(serializeAddon)
term.loadAddon(fitAddon)
term.open(container)
container.addEventListener("pointerdown", handlePointerDown)
focusTerminal()
if (local.pty.buffer) {
if (local.pty.rows && local.pty.cols) {
term.resize(local.pty.cols, local.pty.rows)
}
term.reset()
term.write(local.pty.buffer)
if (local.pty.scrollY) {
term.scrollToLine(local.pty.scrollY)
}
fitAddon.fit()
}
fitAddon.observeResize()
handleResize = () => fitAddon.fit()
window.addEventListener("resize", handleResize)
term.onResize(async (size) => {
if (ws && ws.readyState === WebSocket.OPEN) {
await sdk.client.pty
.update({
ptyID: local.pty.id,
size: {
cols: size.cols,
rows: size.rows,
},
})
.catch(() => {})
}
})
term.onData((data) => {
if (ws && ws.readyState === WebSocket.OPEN) {
ws.send(data)
}
})
term.onKey((key) => {
if (key.key == "Enter") {
props.onSubmit?.()
}
})
// term.onScroll((ydisp) => {
// console.log("Scroll position:", ydisp)
// })
ws.addEventListener("open", () => {
console.log("WebSocket connected")
sdk.client.pty
.update({
ptyID: local.pty.id,
size: {
cols: term.cols,
rows: term.rows,
},
})
.catch(() => {})
})
ws.addEventListener("message", (event) => {
term.write(event.data)
})
ws.addEventListener("error", (error) => {
console.error("WebSocket error:", error)
props.onConnectError?.(error)
})
ws.addEventListener("close", () => {
console.log("WebSocket disconnected")
})
})
onCleanup(() => {
if (handleResize) {
window.removeEventListener("resize", handleResize)
}
container.removeEventListener("pointerdown", handlePointerDown)
if (serializeAddon && props.onCleanup) {
const buffer = serializeAddon.serialize()
props.onCleanup({
...local.pty,
buffer,
rows: term.rows,
cols: term.cols,
scrollY: term.getViewportY(),
})
}
ws?.close()
term?.dispose()
})
return (
<div
ref={container}
data-component="terminal"
data-prevent-autofocus
style={{ "background-color": terminalColors().background }}
classList={{
...(local.classList ?? {}),
"select-text": true,
"size-full px-6 py-3 font-mono": true,
[local.class ?? ""]: !!local.class,
}}
{...others}
/>
)
}
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